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ExtendedProperties Property

DataColumn.ExtendedProperties Property

Gets the collection of custom user information associated with a DataColumn.

Namespace:  System.Data
Assembly:  System.Data (in System.Data.dll)

[BrowsableAttribute(false)]
public PropertyCollection ExtendedProperties { get; }

Property Value

Type: System.Data.PropertyCollection
A PropertyCollection of custom information.

The ExtendedProperties property lets you store custom information with the object. For example, you may store a time when the data should be refreshed.

Extended properties must be of type String. Properties that are not of type String are not persisted when the DataColumn is written as XML.

The following example adds a custom property to the PropertyCollection returned by the ExtendedProperties property. The second example retrieves the custom property.


private void SetProperty(DataColumn column)
{
    column.ExtendedProperties.Add("TimeStamp", DateTime.Now);
}

private void GetProperty(DataColumn column)
{
    Console.WriteLine(column.ExtendedProperties["TimeStamp"].ToString());
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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